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Molecular genetic study of schizophrenia by using sib-pair analysis and microsatellite markers

Research Project

Project/Area Number 09470211
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Psychiatric science
Research InstitutionOsaka Medical College

Principal Investigator

YONEDA Hiroshi  Faculty of Medicine, Osaka Medical College, Professor, 医学部, 教授 (30140148)

Co-Investigator(Kenkyū-buntansha) INADA Yasushi  Faculty of Medicine, Osaka Medical College, Lecturer, 医学部, 助手 (10268211)
SAKAI Jun  Faculty of Medicine, Osaka Medical College, Lecturer, 医学部, 助手 (60309143)
KOH Jur  Faculty of Medicine, Osaka Medical College, Lecturer, 医学部, 助手 (40257853)
Project Period (FY) 1997 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2000: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1997: ¥7,400,000 (Direct Cost: ¥7,400,000)
Keywordsschizophrenia / association / dopamine D2 receptor / 連鎖解析 / 相関解析 / 同胞対照法 / マイクロサテライトマーカー / 連鎖 / 分子遺伝学 / 連鎖研究 / DNAマーカー
Research Abstract

The hyperactivity of dopaminergic systems is one of the major etiological hypotheses of schizophrenia. The major support of this hypothesis is that effective antipsychotic drugs bind to dopamine receptors and improve acute schizophrenic symptoms. For this reason we investigated the allelic association between schizophrenia and polymorpisms of dopamine D2 receptor (DRD2) and dopamine transporter (DAT) genes. The subjects were 190 biologically unrelated patients with schizophrenia and 103 healthy controls. The DRD2 gene is located on the long arm of chromosome 11 (11q22-23) and revealed Ser/Cys 311, -141C Ins/Del and Taq1A polymorphisms. The DAT gene is located on the short arm of chromosome 5 and has polymorphisms by varied number of repeat sequence of 40 base pairs. The polymorphisms of DRD2 and DAT were detected by RFLP or PCR-PFLP.There were no significant differences between the patients and controls in the gene frequencies and the frequencies of the genotypes. We found no association between schizophrenia and DRD2 and DAT.However the polymorphisms of DRD2 (Ser/Cys 311, -141C Ins/Del) showed significant influences on the symptoms of schizophrenia. A multi-site collaborative study, which we joined it, showed some possible results of linkage by using genome scanning.

Report

(5 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (27 results)

All Other

All Publications (27 results)

  • [Publications] 赤羽目和世: "いわゆる非定型精神病の経過と転帰-非定型精神病の遺伝学"精神科治療学. 15巻5号. 483-488 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 康純: "No association between schizophrenia and polymorphisms of dopamine Transporter (DAT) genes"Bull.OMC. Vol.23. 27-32 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] JSSLG: "Initial genome-wide sib-pair linkage analysis of schizophrenia"Am J Med Genet. Vol96 No.4. 552 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 米田博: "臨床精神医学講座"中山書店. 485 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 米田博: "精神疾患と遺伝"ライフ・サイエンス. 178 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Jun Koh: "No association between schizophrenia and polymorphism of dopamine transporter (DAT) genes"Bull.OMC. 23. 27-32 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] JSSLG: "Initial genome-wide sib-pair analysis of schizophrenia"Am J Med Genet. 96. 552 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroshi Yoneda: "Lecture of clinical psychiatry"Nakayama-Shoten, Tokyo. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hiroshi Yoneda: "Psychiatry and genetics"Life Science, Tokyo. (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 赤羽目和世: "いわゆる非定型精神病の経過と転帰-非定型精神病の遺伝学"精神科治療学. 15巻5号. 483-488 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 水野貴史: "haloperidol投与によるラット脳内σ1receptorのmRNA発現量の変化"日本神経精神薬理学雑誌. 19巻6号. 367 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] JSSLG: "Initial genome-wide sib-pair linkage analysis of schizophrenia"Am J Med Genet. Vol96 No.4. 552 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 米田博: "臨床精神医学講座"中山書店. 485 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Koh,J.: "An Association study between atypical psychoses and dopamine D2 receptor"Molecular psychiatry. 4. 83 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Inada,Y.: "An association study between HTR2A and panic disorder with/without agoraphobia"Molecular Psychiatry. 4. 91 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 米田 博: "精神行動遺伝学"精神医学レビュー. No.28. 5-12 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 米田 博, 康純: "An association study between atypical psychoses and dopaerime D_2receptor gene" Am.J.Med.Genet.81(6). 497 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 米田 博, 姫井昭男: "An association study between alctholisin and serotonergin receptor genes" Am.J.Med.Genet.281(6). 503-504 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 米田博, 稲田泰之: "An association study between the A1 and A2 A adenosial receptor genes and panic disorder in a Japanese population" Am.J.Med.Genet.81(6). 523 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 米田 博: "双極性障害の遺伝子研究" 臨床精神薬理. 1. 815-820 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 米田 博: "薬物依存症に関する遺伝子" 脳の科学. 20. 275-280 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 米田 博 編集: "精神疾患と遺伝" ライフサイエンス, 180 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Sakai,J., Inayama,Y., Yoneda,H., et al.: "Lack of association between bipolar attective disorder and the serotonin 2A recepton gene poly morphism" Bull.Osaka Med.Coll.43・1. 9-14 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yokota S, Yoneda H, et al.: "A clinico-genetic sendy on schigophrenia in monozygotic twins reared apart" Bull.Osaka Med.Coll.43・1. 67-73 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Koh J, Inayama Y, Yoneda H, et al.: "Lack of point mutation of the amgloid precursor protein gene in schizophrenia" Bull.Osaka Med.Coll.43・1. 75-79 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 米田 博: "精神神経科領域の分子遺伝学の進歩" Bio Clinica. 13・2. 171-174 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 米田 博: "薬物依存症に関する遺伝子" 脳の科学. 20・3. 275-280 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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